Gwynneth is a distinctive girls' name in United States, ranking #8568 in 1997 with 10 recorded births. The name reached its all-time peak in 2001 with 16 births ranking #6725. Since 1996, the popularity has increased by 42.9%. In 1997, approximately 1 in every 174,066 girls born was named Gwynneth. STABLE Recent data shows the name is currently stable.